- Heart rate monitoring, 24-hour real-time heart rate monitoring, pay attention to your health.50 meters water resistant, equivalent to a water pressure of 50 meters underwater, not only to wear swimming,you can also record the data when swimming.

- Equipped with six-axis sensor / automatic recognition of the main strokes (freestyle, breaststroke, butterfly, backstroke) / record speed, distance, number of turns, calories, average SWOLF and other data.

- Ultra-long standby time up to 14 days in the ordinary situation(depends on many factors), save the frequent charging trouble. If use the scientific sleep function, the continuous use of time can reach upto 6 days(depends on many factors).